Hi We have a customer with Solr 5.3.1. The index contains less than 3.5 million docs, and index folder size is about 240GB. I found that the most huge files are .cfs files (compound files) that were created lately although only few documents were added. The useCompoundFile parameter is commented in SolrConfig.xml. As far as I understand the default of Solr is false, and of Lucene is true, which means this feature should be disabled. I would like to understand why those files created and why they are so huge.
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